docs: add intial db structure idea
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docs/db.sql
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273
docs/db.sql
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-- Postgres database for lamp-control system
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CREATE TABLE users (
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id SERIAL PRIMARY KEY,
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first_name VARCHAR(50),
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last_name VARCHAR(50),
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role SMALLINT NOT NULL DEFAULT 0 CHECK (role BETWEEN 0 AND 3), -- 0=viewer, 1=user, 2=operator, 3=administrator
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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last_login TIMESTAMPTZ,
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banned_at TIMESTAMPTZ,
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deleted_at TIMESTAMPTZ
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);
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CREATE TABLE user_sessions (
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id SERIAL PRIMARY KEY,
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user_id INTEGER NOT NULL REFERENCES users(id),
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session_token VARCHAR(255) UNIQUE NOT NULL,
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expires_at TIMESTAMPTZ NOT NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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CREATE TABLE zones (
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id SERIAL PRIMARY KEY,
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name VARCHAR(255) NOT NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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deleted_at TIMESTAMPTZ
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);
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CREATE TABLE lamp_profiles (
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id SERIAL PRIMARY KEY,
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name VARCHAR(255) NOT NULL,
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voltage INTEGER NOT NULL, -- mV (millivolts)
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current INTEGER NOT NULL, -- mA (milliamps)
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runtime INTEGER NOT NULL, -- minutes
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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deleted_at TIMESTAMPTZ
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);
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CREATE TABLE sensors (
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id SERIAL PRIMARY KEY,
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device_id VARCHAR(36) UNIQUE,
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gb_id VARCHAR(36) UNIQUE,
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latitude DECIMAL(9,6),
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longitude DECIMAL(9,6),
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zone_id INT REFERENCES zones(id),
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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deleted_at TIMESTAMPTZ
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);
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CREATE TABLE lamps_relay_boxes (
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id SERIAL PRIMARY KEY,
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device_id VARCHAR(36) UNIQUE, -- uuid
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gb_id VARCHAR(36) UNIQUE, -- uuid
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identification_number VARCHAR(50) UNIQUE,
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-- TODO: calculate status instead of storing it?
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status SMALLINT NOT NULL DEFAULT 0 CHECK (status BETWEEN 0 AND 2), -- 0=off, 1=on, 2=error
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latitude DECIMAL(9,6),
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longitude DECIMAL(9,6),
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lamp_post_number VARCHAR(50) NOT NULL,
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running_minutes INTEGER NOT NULL DEFAULT 0,
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zone_id INT REFERENCES zones(id),
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profile_id INT REFERENCES lamp_profiles(id),
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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deleted_at TIMESTAMPTZ
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);
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CREATE INDEX idx_lamp_relay_boxes_zone_id ON lamp_relay_boxes(zone_id);
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-- TODO: maybe calculate running minutes based on metrics instead of status changes?
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-- Function to calculate running minutes -- Modified function name and logic
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CREATE OR REPLACE FUNCTION update_lamp_relay_box_running_minutes()
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RETURNS TRIGGER AS $$
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BEGIN
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IF NEW.status = 1 AND OLD.status = 0 THEN
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UPDATE lamp_relay_boxes
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SET running_minutes = running_minutes + EXTRACT(EPOCH FROM (CURRENT_TIMESTAMP - OLD.updated_at)) / 60
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WHERE id = NEW.id;
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END IF;
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RETURN NEW;
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END;
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$$ LANGUAGE plpgsql;
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-- Trigger to update running minutes when lamp_relay_box status changes -- Modified trigger name
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CREATE TRIGGER trg_update_lamp_relay_box_running_minutes
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AFTER UPDATE OF status ON lamp_relay_boxes
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FOR EACH ROW
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EXECUTE FUNCTION trg_update_lamp_relay_box_running_minutes();
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CREATE TABLE lamp_relay_box_logs (
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id SERIAL PRIMARY KEY,
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lamp_relay_box_id INT NOT NULL REFERENCES lamp_relay_boxes(id),
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status SMALLINT NOT NULL, -- 0=off, 1=on, 2=error
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event_type SMALLINT NOT NULL, -- 0=manual, 1=scheduled, 2=error, 3=gb
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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CREATE INDEX idx_lamp_relay_box_logs_lamp_relay_box_id_created_at ON lamp_relay_box_logs(lamp_relay_box_id, created_at);
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CREATE TABLE metrics (
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id SERIAL PRIMARY KEY,
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lamp_relay_box_id INTEGER NOT NULL REFERENCES lamp_relay_boxes(id),
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metric SMALLINT NOT NULL CHECK (metric BETWEEN 0 AND 6), -- 0=current, 1=voltage, 2=power, 3=energy, 4=lux, 5=brightness, 6=motions
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value INTEGER NOT NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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CREATE INDEX idx_metrics_lamp_relay_box_id_metric_created_at ON metrics(lamp_relay_box_id, metric, created_at);
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-- Create a view for real-time lamp_relay_box status
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CREATE VIEW real_time_lamp_relay_box_status AS
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SELECT
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l.id,
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l.identification_number,
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l.status, -- TODO: calculate status instead of storing it?
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l.latitude,
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l.longitude,
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lux.value AS lux,
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motions.value AS motions,
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power.value AS power,
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current.value AS current,
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voltage.value AS voltage,
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energy.value AS energy,
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brightness.value AS brightness,
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GREATEST(lux.created_at, motions.created_at, power.created_at, current.created_at, voltage.created_at, energy.created_at, brightness.created_at) AS last_updated
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FROM lamp_relay_boxes l
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LEFT JOIN LATERAL (
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SELECT value, created_at
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FROM metrics
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WHERE lamp_relay_box_id = l.id
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AND metric = 0 -- current
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ORDER BY created_at DESC
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LIMIT 1
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) current ON true
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LEFT JOIN LATERAL (
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SELECT value, created_at
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FROM metrics
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WHERE lamp_relay_box_id = l.id
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AND metric = 1 -- voltage
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ORDER BY created_at DESC
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LIMIT 1
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) voltage ON true
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LEFT JOIN LATERAL (
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SELECT value, created_at
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FROM metrics
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WHERE lamp_relay_box_id = l.id
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AND metric = 2 -- power
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ORDER BY created_at DESC
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LIMIT 1
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) power ON true
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LEFT JOIN LATERAL (
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SELECT value, created_at
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FROM metrics
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WHERE lamp_relay_box_id = l.id
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AND metric = 3 -- energy
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ORDER BY created_at DESC
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LIMIT 1
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) energy ON true
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LEFT JOIN LATERAL (
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SELECT value, created_at
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FROM metrics
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WHERE lamp_relay_box_id = l.id
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AND metric = 4 -- lux
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ORDER BY created_at DESC
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LIMIT 1
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) lux ON true
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LEFT JOIN LATERAL (
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SELECT value, created_at
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FROM metrics
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WHERE lamp_relay_box_id = l.id
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AND metric = 5 -- brightness
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ORDER BY created_at DESC
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LIMIT 1
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) brightness ON true
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LEFT JOIN LATERAL (
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SELECT value, created_at
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FROM metrics
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WHERE lamp_relay_box_id = l.id
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AND metric = 6 -- motions
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ORDER BY created_at DESC
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LIMIT 1
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) motions ON true;
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-- Function to update lamp_relay_box status based on metrics
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CREATE OR REPLACE FUNCTION update_lamp_relay_box_status()
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RETURNS TRIGGER AS $$
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BEGIN
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UPDATE lamp_relay_boxes
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SET
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status = CASE
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WHEN NEW.power_watts > 0 THEN 1
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ELSE 0
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END,
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updated_at = NEW.created_at
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WHERE id = NEW.lamp_relay_box_id;
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RETURN NEW;
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END;
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$$ LANGUAGE plpgsql;
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-- Trigger to update lamp_relay_box status when new metrics is inserted
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CREATE TRIGGER trigger_update_lamp_relay_box_status
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AFTER INSERT ON metrics
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FOR EACH ROW
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EXECUTE FUNCTION update_lamp_relay_box_status();
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CREATE TABLE schedules (
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id SERIAL PRIMARY KEY,
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type SMALLINT NOT NULL, -- 0=manual, 1=scheduled
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start_time TIME NOT NULL,
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end_time TIME NOT NULL,
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status SMALLINT NOT NULL, -- 0=on, 1=off
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days_of_week bit(7) NOT NULL, -- Bitmask for days of the week
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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deleted_at TIMESTAMPTZ
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);
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CREATE TABLE zone_schedules (
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id SERIAL PRIMARY KEY,
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zone_id INT NOT NULL REFERENCES zones(id),
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schedule_id INTEGER REFERENCES schedules(id),
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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deleted_at TIMESTAMPTZ
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);
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CREATE INDEX idx_zone_schedules_zone_id ON zone_schedules(zone_id);
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CREATE TABLE manual_overrides (
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id SERIAL PRIMARY KEY,
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zone_id INT NOT NULL REFERENCES zones(id),
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user_id INT NOT NULL REFERENCES users(id),
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start_time TIMESTAMPTZ NOT NULL,
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end_time TIMESTAMPTZ NOT NULL,
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type SMALLINT NOT NULL, -- 0=turn_off, 1=turn_on
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reason VARCHAR(500),
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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deleted_at TIMESTAMPTZ
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);
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CREATE INDEX idx_manual_overrides_zone_id_start_time ON manual_overrides(zone_id, start_time);
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CREATE TABLE alerts (
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id SERIAL PRIMARY KEY,
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lamp_relay_box_id INT NOT NULL REFERENCES lamp_relay_boxes(id),
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type SMALLINT NOT NULL,
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description VARCHAR(500),
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status SMALLINT NOT NULL DEFAULT 0, -- 0=active, 1=acknowledged, 2=resolved
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acknowledged_by INTEGER REFERENCES users(user_id),
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acknowledged_at TIMESTAMPTZ,
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resolved_by INTEGER REFERENCES users(user_id),
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resolved_at TIMESTAMPTZ,
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comments TEXT,
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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CREATE TABLE maintenance_logs (
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id SERIAL PRIMARY KEY,
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lamp_relay_box_id INTEGER REFERENCES lamp_relay_boxes(lamp_relay_box_id),
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user_id INTEGER REFERENCES users(user_id),
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action_type SMALLINT NOT NULL, -- 0=inspection, 1=repair, 2=replacement
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description TEXT,
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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-- Index for querying by lamp_relay_box in chronological order
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CREATE INDEX idx_maintenance_logs_lamp_relay_box_id_created_at ON maintenance_logs(lamp_relay_box_id, created_at);
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-- Index for querying by user in chronological order
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CREATE INDEX idx_maintenance_logs_user_id_created_at ON maintenance_logs(user_id, created_at);
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